how to show http response in openTelemetry/jaeger?

Question

I just follow this tutorial here https://quarkus.io/guides/opentelemetry to create a quarkus application with openTelemetry and jaeger.

It works fine, I can see all my requests in jaeger, but there is no response body.

My problem here is that I have several microservices communication with each other and sometimes one gets an error that stops the whole process, so I have to debbug one by one to find which service did fail. If I get this response body in jaeger this would be easily to identify which service trigger any exception.

So right now I don't have any response body in my jaeger and I don't know if jaeger doesn't show any response and I have to find another tool, or if there is some configuration I need to do in my opentelemetry to send it to jaeger.

Can someone help? There is any way to see http responses with openTelemetry?

Errors should show up automatically without any additional configuration. Can you please open an issue with a reproducer here: https://github.com/quarkusio/quarkus/issues? — Roberto Cortez, Sep 05 '22 at 12:52

Bruno Baptista · Answer 1 · 2022-10-18T15:25:55.473

0

Assuming you are making HTTP requests, on Quarkus, HTTP request spans will show the operation result: HTTP Span details pic.. If you need to add specific details about the response you might need to create a manual span for it.

edited Oct 18 '22 at 15:25

answered Oct 18 '22 at 15:25

Bruno Baptista

209
1
6

score 0 · Answer 2 · answered Nov 08 '22 at 19:01

My solution was to add it manually as attribute of current span:

final Span span = io.opentelemetry.api.trace.Span.current();
span.setAttribute("http.response.headers", header);
span.setAttribute("http.response.body", body);
if (httpStatus >= Response.Status.BAD_REQUEST.getStatusCode()) {
     span.setStatus(StatusCode.ERROR);
}

I still thinking that quarkus-opentelemetry should have an application property to define that we want header and/or body for request, response, client request and client response on Span.

score 0 · Answer 3 · answered Apr 03 '23 at 23:11

I solved this problem using Quarkus ContainerRequestFilter to intercept all requests and Span bean provided by quarkus-opentelemetry

So my solution looked like this:

import io.opentelemetry.api.trace.Span;

import javax.inject.Inject;
import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.container.ContainerRequestFilter;
import javax.ws.rs.ext.Provider;

@Provider
@JBossLog
public class OtelCustomInterceptor implements ContainerRequestFilter {
    
    @Inject
    Span span;

    @Override
    public void filter(ContainerRequestContext context) {
        var headers = context.getHeaders();
        headers.forEach((k, l) -> l.forEach(
            header -> setSpan(k, header, span)
        ));
    }

    private static Span setSpan(String k, String header, Span span) {
        return span.setAttribute("http.request.headers.%s".formatted(k), header);
    }

}

how to show http response in openTelemetry/jaeger?

3 Answers3